Thai iced tea is a sweet, creamy drink made from strongly brewed black tea, spices like star anise and cardamom, sugar, and usually topped with evaporated milk or condensed milk. The classic orange color comes from food coloring added to the tea mix, not from the tea leaves themselves. It is served over ice, which is why it is called iced tea.
What Is Thai Tea Made Of?
Thai tea starts with a base of strongly brewed black tea. In Thailand, a specific blend called Cha Tra Mue is the most famous brand, but many blends exist. The tea leaves are typically a mix of Assam and Ceylon black teas, which give the drink its bold, malty flavor.
The tea is brewed very strong, often for several minutes, to create a concentrated liquid. Then sugar is added while the tea is hot so it dissolves completely. Thai tea is noticeably sweeter than most Western tea drinks.
The signature orange-red color is not natural. Most commercial Thai tea mixes contain artificial food coloring, usually a blend of FD&C Yellow No. 6 and Red No. 40. Some organic or natural versions use annatto, a plant-based dye, but the vivid orange you see in most restaurants comes from artificial coloring.
What Spices Are in Thai Tea?
Traditional Thai tea recipes include a specific set of spices. The most common are star anise, cardamom, and sometimes tamarind. Some blends add cinnamon, cloves, or vanilla.
These spices are steeped along with the black tea leaves. The star anise gives a licorice-like note, and the cardamom adds a warm, slightly citrusy flavor. Together they create the complex taste that distinguishes Thai tea from plain iced tea.
Not every Thai tea recipe uses all these spices. Street vendors in Thailand often use pre-mixed powders or tea bags that already contain the spices. The exact blend varies by brand and by vendor.
Why Is Thai Tea Orange?
The bright orange color is the most recognizable feature of Thai tea, and it is almost always artificial. The tea leaves themselves brew to a dark reddish-brown, similar to strong Assam tea. The orange hue appears because of added food coloring.
Most Thai tea mixes sold in packages include artificial dyes to make the drink look the way customers expect. If you brew plain black tea with spices and no coloring, you get a dark brown drink, not an orange one.
Some higher-end or organic Thai tea brands use annatto, a natural orange dye made from the seeds of the achiote tree. It produces a slightly more muted orange color than artificial dyes. Both versions taste similar, but the color source is different.
What Milk Is Used in Thai Tea?
Traditional Thai tea is served with condensed milk and evaporated milk. These two products are not the same, though people often confuse them.
Condensed milk is milk that has had water removed and a large amount of sugar added. It is thick, syrupy, and very sweet. It gives Thai tea its creamy sweetness.
Evaporated milk is milk that has had about 60 percent of its water removed, but no sugar is added. It is thinner than condensed milk and adds creaminess without extra sweetness. Many Thai tea recipes use a sweetener in the tea itself, then pour a layer of evaporated milk on top.
In Thailand, the typical preparation involves mixing condensed milk into the hot tea, then serving it over ice and finishing with a splash of evaporated milk on top. The milk swirls through the orange tea, creating the layered look you see in photos.
Outside Thailand, many cafes substitute regular whole milk, half-and-half, or non-dairy alternatives like oat milk or coconut milk. These change the flavor and sweetness profile. A Thai tea made with regular milk and no condensed milk will be noticeably less sweet and less creamy than the traditional version.
Is Thai Tea Healthy?
Thai tea is a sweet treat, not a health drink. A typical 16-ounce serving from a cafe contains roughly 250 to 350 calories, depending on how much milk and sugar are used. The sugar content is high, often 30 to 40 grams per serving, which is close to the American Heart Association’s recommended daily limit for added sugar.
Black tea itself has health benefits. It contains antioxidants called flavonoids, and research has linked regular black tea consumption to lower risk of heart disease and improved blood sugar control. But the milk and sugar in Thai tea offset many of these benefits.
The food coloring used in Thai tea is approved by the FDA for use in foods. Some people report sensitivity to artificial dyes, but no strong evidence shows that moderate consumption of these specific dyes is harmful. If you want to avoid artificial coloring, look for brands that use annatto or make your own at home with plain black tea and spices.
How Is Thai Tea Different From Other Iced Teas?
Thai tea stands apart from other iced teas in three key ways: sweetness, creaminess, and spice. Most American iced tea is unsweetened or lightly sweetened and served without milk. Thai tea is heavily sweetened and always served with dairy.
Thai tea is also brewed much stronger than typical iced tea. The concentration matters because the tea gets diluted by ice as it melts. A standard glass of Thai tea needs a strong base to keep its flavor after dilution.
Other Asian milk teas, like Hong Kong milk tea or Taiwanese bubble tea, share some similarities but differ in their tea base and preparation. Hong Kong milk tea uses a strong Ceylon blend and is served hot or cold with evaporated milk. Bubble tea typically uses a lighter tea base and often includes chewy tapioca pearls.
The spice blend is what makes Thai tea unique. No other common iced tea includes star anise and cardamom. That warm, aromatic quality is the signature of Thai tea.
Can You Make Thai Tea at Home?
Yes, and it is simpler than most people expect. You need three things: strong black tea, spices, and sweetened milk.
To make a basic version, steep two to three tablespoons of loose-leaf black tea in two cups of boiling water. Add one star anise pod, a few cardamom pods, and a cinnamon stick if you have them. Let it steep for five minutes, then strain.
Stir in two to three tablespoons of sugar while the tea is hot. Then mix in about two tablespoons of condensed milk. Pour the mixture over a glass full of ice and top with a splash of evaporated milk or regular milk.
If you want the authentic orange color, you can add a drop of food coloring or use a pre-made Thai tea mix. Without coloring, your homemade version will be brown but will taste nearly identical.
Pre-packaged Thai tea mixes are available at most Asian grocery stores and online. They contain the tea, spices, and food coloring already blended. You just brew, sweeten, and add milk.
Are There Caffeine-Free Versions of Thai Tea?
Traditional Thai tea contains caffeine because it is made with black tea. A typical 8-ounce cup of black tea contains about 40 to 70 milligrams of caffeine, and a large Thai iced tea can contain more because the tea is brewed so strong.
Some cafes offer a decaffeinated version using decaf black tea. The flavor is slightly different because decaffeination changes the tea’s taste profile, but the drink still works well. You can also make Thai tea with rooibos, a naturally caffeine-free South African herb that brews to a similar reddish color.
If you are sensitive to caffeine or avoiding it for medical reasons, ask your cafe if they have a decaf option. Otherwise, treat Thai tea as a moderately caffeinated drink similar to coffee or regular black tea.
Frequently Asked Questions
Is Thai tea the same as bubble tea?
No. Thai tea is a spiced black tea with milk, while bubble tea is a broader category of tea drinks that usually contain chewy tapioca pearls. Thai tea can be served with pearls, but that makes it a bubble tea with Thai tea as the base.
Does Thai tea contain caffeine?
Yes. Thai tea is made from black tea, so it contains caffeine. A typical serving has roughly 40 to 70 milligrams, similar to a cup of regular coffee.
Can I drink Thai tea if I am lactose intolerant?
Traditional Thai tea contains condensed milk and evaporated milk, both of which are dairy. You can ask for a version made with almond, oat, or coconut milk, but the flavor will be less rich and less sweet than the original.
Why does Thai tea taste different at different restaurants?
Each vendor uses a different tea blend, spice ratio, and milk combination. Some use more condensed milk, others use more sugar, and some add extra spices. The drink is not standardized, so taste varies widely.
